In the event of volcanic ash on the surface, which of the following is an approved method for departures?

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Multiple Choice

In the event of volcanic ash on the surface, which of the following is an approved method for departures?

When volcanic ash is on the surface, the priority is to minimize exposure to that ash while keeping propulsion active during the critical start of the takeoff. A rolling takeoff achieves this by accelerating into the takeoff thrust and lifting off promptly, so the aircraft spends less time on the ash-laden runway and engines are already producing power as you rotate. This helps reduce the risk of ash ingestion or damage to the engines and avoids extended exposure to contaminated pavement during taxi and run-up. Other approaches would keep you on the contaminated surface longer or require turning off engines, which is unsafe or impractical in this situation, or involve delaying departure without effectively mitigating the ash hazard.

When volcanic ash is on the surface, the priority is to minimize exposure to that ash while keeping propulsion active during the critical start of the takeoff. A rolling takeoff achieves this by accelerating into the takeoff thrust and lifting off promptly, so the aircraft spends less time on the ash-laden runway and engines are already producing power as you rotate. This helps reduce the risk of ash ingestion or damage to the engines and avoids extended exposure to contaminated pavement during taxi and run-up.

Other approaches would keep you on the contaminated surface longer or require turning off engines, which is unsafe or impractical in this situation, or involve delaying departure without effectively mitigating the ash hazard.

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